JANCZEWSKA, Joanna; STAROSTKA, Maciej; WATERSTRAAT, Nils. Local and global bifurcation for periodic solutions of hamiltonian systems via comparison theory for the spectral flow. Topological Methods in Nonlinear Analysis, [S. l.], v. 67, n. 1, p. 103–120, 2026. DOI: 10.12775/TMNA.2025.039. Disponível em: https://apcz.umk.pl/TMNA/article/view/70082. Acesso em: 2 jun. 2026.